LT6658BIMSE-5#TRPBF

Overview

The LT6658BIMSE-5#TRPBF is a precision dual output voltage reference from Analog Devices, featuring a fixed 5V output. It operates within an industrial temperature range of -40°C to +85°C and utilizes a 16-lead MSOP package with tape-and-reel delivery. The device provides high accuracy with an initial tolerance of ±0.1% and a maximum temperature coefficient of 20ppm/°C. Output 1 supports sourcing up to 150mA and sinking up to 20mA, while Output 2 supports sourcing up to 50mA and sinking up to 20mA. It accepts input voltages up to 36V.

Feature Summary

• Dual independent outputs with identical precision specifications that track each other over temperature and load variations
• Integrated Refulator architecture combining precision reference performance with linear regulator capabilities for heavy loading
• Kelvin sense connections on outputs to achieve extremely low load regulation under varying current conditions
• Separate supply pins for each output to allow power consumption reduction and buffer amplifier isolation

Applications

• Driving reference inputs of high resolution ADCs and DACs under heavy loading
• Simultaneous powering of microcontrollers and other circuitry alongside precision analog components
• Dual output tracking reference systems requiring matched voltage rails
• Precision low noise regulators in instrumentation and process control

Procurement Notes

Verify the specific suffix #TRPBF confirms the tape-and-reel packaging format required for automated assembly processes. Ensure the B-grade designation aligns with the required 20ppm/°C temperature coefficient and 0.1% initial accuracy specifications for your design. Confirm the 16-lead MSOP package footprint matches your PCB layout constraints before finalizing procurement orders.

Selection Notes

Select this component when dual isolated or tracked voltage rails are needed for mixed-signal systems. The B-grade offers a balance of cost and performance suitable for general industrial applications. Consider the separate VIN1/VIN2 pins if independent power domains are necessary to minimize cross-talk between the high-current output and sensitive reference circuits.

Part Context

This part belongs to the LT6658 family of precision dual output references. It shares the same core architecture as other voltage options like the 2.5V or 3.3V variants but is factory-trimmed for a fixed 5V output. The 'I' indicates the industrial temperature grade, distinguishing it from the automotive H-grade which extends operation to 125°C.

Replacement Considerations

LT6658AIMSE-5#TRPBF (A-Grade variant)

FAQ

Can the output voltage be adjusted?

No, the LT6658BIMSE-5 is a fixed 5V output version. Adjustable versions exist within the LT6658 family using external resistors.

What is the difference between VIN, VIN1, and VIN2?

VIN is the main supply input. VIN1 and VIN2 are separate supply pins for Output 1 and Output 2 respectively, allowing for independent power management and isolation.